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BUF20800

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具有两个可编程 VCOM 通道的 18 通道伽马电压发生器

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数据表

BUF20800

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数据表 立即订购

产品详情

Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 7 Source driver voltage (max) (V) 18 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 95
Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 7 Source driver voltage (max) (V) 18 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 95
HTSSOP (DCP) 38 62.08 mm² (9.7 mm × 6.4 mm)
  • 18-CHANNEL GAMMA CORRECTION
  • 2-CHANNEL PROGRAMMABLE VCOM:
    100mA IOUT
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT: 900µA/ch
  • SUPPLY VOLTAGE: 7V to 18V
  • DIGITAL SUPPLY: 2.0V to 5.5V
  • INDUSTRY-STANDARD, TWO-WIRE INTERFACE:
    3.4MHz High-Speed Mode
  • HIGH ESD RATING:
    4kV HBM, 1kV CDM, 200V MM
  • DEMO BOARD AND SOFTWARE AVAILABLE
  • APPLICATIONS
    • REPLACES RESISTOR-BASED GAMMA SOLUTIONS
    • TFT-LCD REFERENCE DRIVERS
    • DYNAMIC GAMMA CONTROL

PowerPAD is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
  • 18-CHANNEL GAMMA CORRECTION
  • 2-CHANNEL PROGRAMMABLE VCOM:
    100mA IOUT
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT: 900µA/ch
  • SUPPLY VOLTAGE: 7V to 18V
  • DIGITAL SUPPLY: 2.0V to 5.5V
  • INDUSTRY-STANDARD, TWO-WIRE INTERFACE:
    3.4MHz High-Speed Mode
  • HIGH ESD RATING:
    4kV HBM, 1kV CDM, 200V MM
  • DEMO BOARD AND SOFTWARE AVAILABLE
  • APPLICATIONS
    • REPLACES RESISTOR-BASED GAMMA SOLUTIONS
    • TFT-LCD REFERENCE DRIVERS
    • DYNAMIC GAMMA CONTROL

PowerPAD is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for VCOM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI’s latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industry-standard, two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.

For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD™ package. It is specified from –40°C to +85°C.

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for VCOM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI’s latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industry-standard, two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.

For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD™ package. It is specified from –40°C to +85°C.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 18-Channel, Gamma Voltage Generator with Two Programmable Vcom Channels 数据表 (Rev. E) 2007-12-5
应用手册 Driving Capacitive Loads with Gamma Buffers 2012-11-20
EVM 用户指南 BUF20800/BUF20820EVM User Guide 2011-4-8

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

支持软件

SBOC395 — BUF20800-20820 EVM Source Code

支持的产品和硬件
支持软件

SBOC396 — BUF20800/BUF20820 EVM Software

支持的产品和硬件
仿真模型

Gamma Buffer I2C IBIS Model

SBOM409.ZIP (39 KB) - IBIS 模型
支持的产品和硬件
仿真模型

INA271 Generic Spice Model Listing (Rev. A)

SBOC286A.ZIP (37 KB) - SPICE 模型
支持的产品和硬件
仿真模型

INA271 TINA-TI Reference Design (Rev. B)

SBOC285B.TSC (176 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

INA271 TINA-TI Spice Model (Rev. A)

SBOM313A.ZIP (6 KB) - TINA-TI Spice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (DCP) 38 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

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